Air and vapor barrier sheathing system

Abstract

A laminated panel comprising an air and vapor barrier membrane is provided. Heating of the barrier membrane allows self-adhesion to a surface on which it is applied after transudation of fusion of the sealing material through the support sheets. The air and vapor barrier membrane of the present invention also allows for application without releasing of a liner for the application on a surface to be sealed or protected.

I/we claim:  
     
         1 . A laminated panel substantially impervious to atmospheric air and vapor comprising a board, said board having one surface covered with a sealing membrane, said sealing membrane comprising a layer of sealing material having one side coated with a layer of impervious non transudent surfacing material that is in adhesive contact with said layer of sealing material, and a second side coated with a support sheet comprised of a therethrough so as to allow said sealing membrane said board.  
     
     
         2 . The laminated panel of claims  1 , wherein said support sheet is sufficiently porous to permit passage of said sealing material therethrough.  
     
     
         3 . The laminated panel of  claim 1 , wherein said adherent support sheet is penetrated by an adhesive material previously applied thereto or on a surface on which said integrated sealing membrane is applied.  
     
     
         4 . The laminated panel of  claim 1 , wherein said sealing material comprises a water repellant material selected from the group consisting of a transudent bitumen, a transudent polymer, a transudent resin, and a mixture thereof.  
     
     
         5 . The laminated panel of  claim 1 , wherein said board is a panel of wood, concrete, gypsum, perlite, kraft, foam, wood fiber, plywood, insulating material, a paper sheet, or a metallic sheet.  
     
     
         6 . The laminated panel of  claim 5 , wherein said bitumen is a polymer-modified asphalt.  
     
     
         7 . The laminated panel of  claim 1 , wherein said layer of sealing material has a thickness of between 0.1 to 8 mm.  
     
     
         8 . The laminated panel of  claim 1 , wherein said impervious non transudent surfacing material is selected from the group consisting of a polymer, a resin, a plastic, a metal, a polyester, a polypropylene, a polybutyrene, a polyimide, a polycarbonate, a polyamide, a polyethylene, a polystyrene, a polyvinylchloride, a fluoroplastic, a sulfone polymer, and a polyvinylidene chloride.  
     
     
         9 . The laminated panel of  claim 1 , wherein said support sheet is made of fiber comprising Kraft paper, a fabric, or a mixture thereof.  
     
     
         10 . The laminated panel of  claim 1 , wherein said sealing material further comprises up to 40% by weight of a filler.  
     
     
         11 . The laminated panel of  claim 1 , wherein said sealing material comprises between 50 to 100% of bitumen, and up to 50% by weight of at least one copolymer, wherein combination of said bitumen and said copolymer forms 100% of said sealing material.  
     
     
         12 . The laminated panel of  claim 11 , wherein said bitumen copolymer combination is a styrene-butadiene-styrene, block copolymer.  
     
     
         13 . A method for protecting a construction against atmospheric air or vapor comprising: 
 a) providing a laminated panel as defined in  claim 1;     b) heating said laminated panel on a side of said sealing membrane having said layer of impervious non transudent, surfacing material for a time and a temperature allowing said side to become adhesive; and    c) applying the heated laminated panel of step b) on a construction surface in manner to allow self-adhesion of the laminated panel to said construction surface.    
     
     
         14 . The method of  claim 13 , which comprises laminating said board with said sealing membrane before or after adhesion to said construction surface.